Deepwater resonator array for subsea noise mitigation

A method of mitigating long-term noise produced in a subsea oil and/or gas facility comprising rotating equipment/machinery located subsea and configured for subsea use, the rotating equipment/machinery comprising pumping equipment/machinery having one or more pumps, or compression equipment/machinery having one or more compressors, or both, for processing oil and/or gas generated by the subsea oil and gas facility, the method comprising:

• securing a deepwater resonator frame to a module support frame of the rotating equipment/machinery, the deepwater resonator frame being attached to a deepwater resonator array comprising an array of resonator cups formed within resonator panels, the resonator cups being capable of being filled with gas;
• and
• filling the resonator cups with a gas to form resonators, the resonators being configured to mitigate noise generated by the rotating equipment/machinery during operation;
• and
• wherein securing the deepwater resonator frame to the module support frame places the deepwater resonator array such that the deepwater resonator array surrounds the rotating equipment/machinery on at least one side and above a top of the rotating equipment/machinery and sufficiently proximate the rotating equipment/machinery to enable resonators of the deepwater resonator array to mitigate the noise generated by the rotating equipment/machinery during operation, and wherein the deepwater resonator array is configured to be located entirely beneath a sea surface during operation of the rotating equipment/machinery with the rotating equipment/machinery installed on the seabed.